em driver, 82574L chip, and possibly ASPM

[Mike Tancsa]

On 11/23/2010 7:47 AM, Ivan Voras wrote:
> It looks like I'm unfortunate enough to have to deploy on a machine
> which has the 82574L Intel NIC chip on a Supermicro X8SIE-F board, which
> apparently has hardware issues, according to this thread:
> 
> http://sourceforge.net/tracker/index.php?func=detail&aid=2908463&group_id=42302&atid=447449
> 
> 

Interesting, this is the same nic that has been giving me grief! Mine is
on an Intel server board (S3420GPX). The symptoms are VERY similar to
what the LINUX user sees as well with RX errors and the traffic patterns.

	---Mike


> One of the proposed workarounds is disabling "Active State Power
> Management" in the BIOS and in the OS.
> 
> I have disabled it in BIOS but I don't know how to disable it in FreeBSD
> (apparently only disabling it in BIOS isn't enough).
> 
> Any ideas on how to achieve the effect in FreeBSD?
> 
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